20世纪以来中学数学教材中“负负得正”法则解释方式的研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1004-9894|24|4|76-81

ISSN: 1004-9894

Source: 数学教育学报, Vol.24, Iss.4, 2015-01, pp. : 76-81

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Abstract